Nonstop flight route between Alton, Illinois, United States and Selinsgrove, Pennsylvania, United States:
Departure Airport:
(38°53'25"N by 90°2'45"W)
Arrival Airport:
(40°49'15"N by 76°51'51"W)
Distance from ALN to SEG:
711.06 miles (1,144.34 km)
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Jump to:
- About this route
- ALN Airport Information
- SEG Airport Information
- Facts about ALN
- Facts about SEG
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
- Map of Nearest Airports to SEG
- List of Nearest Airports to SEG
- Map of Furthest Airports from SEG
- List of Furthest Airports from SEG
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Penn Valley Airport (SEG), Selinsgrove, Pennsylvania, United States would travel a Great Circle distance of 711 miles (or 1,144 kilometers).
A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the relatively short distance between St. Louis Regional Airport and Penn Valley Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | ALN / KALN |
| Airport Name: | St. Louis Regional Airport |
| Location: | Alton, Illinois, United States |
| GPS Coordinates: | 38°53'25"N by 90°2'45"W |
| Area Served: | Alton, Illinois |
| Operator/Owner: | St. Louis Regional |
| Airport Type: | Public |
| Elevation: | 544 feet (166 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from ALN |
| More Information: | ALN Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | SEG / KSEG |
| Airport Name: | Penn Valley Airport |
| Location: | Selinsgrove, Pennsylvania, United States |
| GPS Coordinates: | 40°49'15"N by 76°51'51"W |
| Area Served: | Selinsgrove, Pennsylvania |
| Operator/Owner: | Penn Valley Airport Authority |
| Airport Type: | Public |
| Elevation: | 463 feet (141 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from SEG |
| More Information: | SEG Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- St. Louis Regional Airport (ALN) has 2 runways.
- In the spring of 2004 the airport was at the center of a scandal.
- The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
- Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Penn Valley Airport (SEG):
- The furthest airport from Penn Valley Airport (SEG) is Margaret River Airport (MGV), which is located 11,627 miles (18,711 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Penn Valley Airport (SEG) is Williamsport Regional Airport (IPT), which is located 29 miles (47 kilometers) N of SEG.
- Because of Penn Valley Airport's relatively low elevation of 463 feet, planes can take off or land at Penn Valley Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- Penn Valley Airport (SEG) currently has only 1 runway.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 19.64 miles (31.61 km) WSW | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States |     |
| 2 | 22.85 miles (36.78 km) SSW | St. Louis Downtown Airport (CPS) | Cahokia, Illinois (near St. Louis), United States | |
| 3 | 26.41 miles (42.50 km) SSE | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 4 | 36.08 miles (58.06 km) E | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 5 | 36.24 miles (58.32 km) WSW | Spirit of St. Louis Airport (SUS) | Chesterfield, Missouri, United States | |
| 6 | 60.74 miles (97.76 km) ESE | Salem–Leckrone Airport (SLO) | Salem, Illinois, United States | |
| 7 | 68.78 miles (110.69 km) NNE | Abraham Lincoln Capital Airport (SPI) | Springfield, Illinois, United States | |
| 8 | 75.13 miles (120.92 km) ESE | Mt. Vernon Airport (MVN) | Mount Vernon, Illinois, United States | |
| 9 | 88.08 miles (141.75 km) SSE | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 10 | 90.73 miles (146.02 km) NE | Decatur Airport (DEC) | Decatur, Illinois, United States | |
| 11 | 95.12 miles (153.07 km) NW | Quincy Regional Airport (UIN) | Quincy, Illinois, United States | |
| 12 | 96.44 miles (155.20 km) SE | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 13 | 102.97 miles (165.72 km) ENE | Coles County Memorial Airport (MTO) | Mattoon/Charleston, Illinois, United States | |
| 14 | 107.04 miles (172.27 km) WSW | Rolla National Airport (VIH) | Rolla, Missouri, United States | |
| 15 | 115.57 miles (186.00 km) W | Jefferson City Memorial Airport (JEF) | Jefferson City, Missouri, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,002.15 miles (17,706.21 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,979.99 miles (17,670.53 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,957.22 miles (17,633.90 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 10,954.58 miles (17,629.65 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,926.12 miles (17,583.85 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,910.74 miles (17,559.09 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,901.55 miles (17,544.30 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,897.24 miles (17,537.37 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,880.36 miles (17,510.20 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,861.31 miles (17,479.54 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,859.59 miles (17,476.77 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,841.22 miles (17,447.21 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,808.74 miles (17,394.93 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,807.95 miles (17,393.67 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,799.72 miles (17,380.43 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 29.21 miles (47.01 km) N | Williamsport Regional Airport (IPT) | Williamsport, Pennsylvania, United States | |
| 2 | 30.85 miles (49.66 km) SSE | Muir Army Airfield (MUI) | Fort Indiantown Gap, Pennsylvania, United States | |
| 3 | 36.33 miles (58.47 km) NW | William T. Piper Memorial Airport (LHV) | Lock Haven, Pennsylvania, United States | |
| 4 | 41.14 miles (66.21 km) WSW | Mifflin County Airport (RED) | Reedsville, Pennsylvania, United States | |
| 5 | 41.73 miles (67.16 km) S | Capital City Airport (HAR) | Harrisburg, Pennsylvania, United States | |
| 6 | 43.72 miles (70.35 km) S | Harrisburg International Airport (MDT) | Harrisburg, Pennsylvania, United States | |
| 7 | 46.81 miles (75.33 km) ENE | Hazleton Municipal Airport (HZL) | Hazleton, Pennsylvania, United States | |
| 8 | 51.50 miles (82.88 km) W | University Park Airport (SCE) | State College, Pennsylvania, United States | |
| 9 | 56.20 miles (90.44 km) ESE | Reading Regional Airport (RDG) | Reading, Pennsylvania, United States | |
| 10 | 56.82 miles (91.44 km) SSE | Lancaster Airport (LNS) | Lancaster, Pennsylvania, United States | |
| 11 | 62.14 miles (100.01 km) ENE | Wilkes-Barre Wyoming Valley Airport (WBW) | Wilkes-Barre, Pennsylvania, United States | |
| 12 | 62.47 miles (100.54 km) S | York Airport (THV) | York, Pennsylvania, United States | |
| 13 | 64.06 miles (103.10 km) W | Mid-State Regional Airport (PSB) | Philipsburg, Pennsylvania, United States | |
| 14 | 69.34 miles (111.58 km) ENE | Wilkes-Barre/Scranton International Airport (AVP) | Avoca, Pennsylvania, United States | |
| 15 | 71.09 miles (114.41 km) SSW | Gettysburg Regional Airport (GTY) | Gettysburg, Pennsylvania, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,626.72 miles (18,711.35 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,602.75 miles (18,672.77 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,593.95 miles (18,658.61 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,576.81 miles (18,631.02 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,541.08 miles (18,573.53 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 11,518.40 miles (18,537.03 km) SW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 11,508.55 miles (18,521.18 km) SW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,500.80 miles (18,508.69 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 9 | 11,497.37 miles (18,503.19 km) SW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 11,450.31 miles (18,427.44 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,379.97 miles (18,314.24 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,354.64 miles (18,273.47 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,333.25 miles (18,239.05 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 14 | 11,331.42 miles (18,236.10 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 15 | 11,300.07 miles (18,185.65 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |